Multiple-disk brake



Nov. 1oI 1925. 1,561,413

y A.` DESCARRIES' l l MULTIPLE DISK BRAKE Filed Dec. 12,. 1924 Inventor v Attorney Patented N ov. '1(1), 1925.

. 1 UNITED ADLARD DnsoAamEs, yor. MONTREAL, QUEBEC, CANADA.

MULTIPLE-msx BRAKE.

Appucatipn mea December 12, 1924. serial 110,755,567.

Toi all z't may concern Be it known that I, ADLARD-DESCARRIEs,

a subject-of the King of'Great Britain,'re

siding at Montreal, Province fof Quebec,

Y Canada, have invented certain new and use- ,ful Improvements in Multiple-Disk Brakes;

and I do lhereby declare that the following is a full, clear, and exact description of the invention such as will enableothers skilled in` the art to whichl it appertains to -make and use the same. l The present invention pertains to a novel .multiple disk brake adapted for use wherever the regulation of the speed shaft is desired.

The principal object of the inventioniis the provision of a ydevice of this character' which is simple in constructionand effective in operation. The device comprises a plurality of spaced friction disks surrounding the squared portion of a shaft and rotatable therewith. Alternating with the disks are` provided yokes which are free from the shaft.- The square part ofthe shaft also is surrounded by a loose plate having a'corrugatedface.. The rounded part of,the shaft carries a loose c ollar having a complementary corrugated face. A suitable device is provided 'for rotating the collar independently of the shaft, whereby the corrugated' .surfaces are relatively shifted, thereby causl Iing compression of the disks and yokes Aandv consequently impeding the rotation of the shaft. :l

The invention is fully disclosed in the following description and in the accompanying drawings in which:

. Figure 1 isl a Alongitudinal ysection of athe Reference to these views will now be made by means of like characters which are employed todesignate corresponding parts throughout. l y The brake as shown in Figure 1 is con- -structedadjacent the transmission casing 1 on which is formed a rectangular housing 2 having a removable cover 3. It is to be understood in this connection that, the cas on the 1111@ 3 3 'of ing, for containing the multiple disks, may be located wherever needed. The housingis closed at the end opposite the transmission casing by means of a wall 4 from which which extends longitudinally through the i extends a sleeve. 5 surrounding the shaft 6 housing 2 and into the transmission casing 1, as clearly shown in Figure 1. A portion of the shaft is squared as at 7 "from the transmission casing'l to a point slightly in Figure 1.

advance' of the wall 4, as also shown in The squared part is surrounded by a numi ber of friction'disks 8A formed preferably of at equal' distances along the shaft. Each such disk is formed with a square aperture Q9, ythe edges of which engage the periphery of the shaft and thereby cause the disks to be rotated with the shaft. These diskspare hard metal and spaced from one another alternated with yokes 10 formed preferably of asofter metal and fitting rather closely in the spaces between the disks 8. These yokes are substantially U-shaped, each hav`v ing a recess 11, the edges of which are free from the shaft, as shown in Figure 4. The

disk 8 nearest the wall 4 is engaged by a l square plate 12 surrounding the shaftand Y lformed with a central opening 13, the edges of which are spaced from the shaft. A pin v14 is passed throughthe plate -12 and the -yokes v10, 'having one end resting onthe top of the plate and the other end headedy against one ofthe yokes. Thesurface ofthe plate facing the wall -4 is' circularly corrugated, as indicated by the numeral 15 in Figures 1 and-2. f v

Adjacent this corrugated face and surrounding the round partV of the shaft 6 is disposed a collar 16, -the surface thereof facing the corrugations 15 being formed with similarcorrugations 17 An arm 18 extends from the collar througha transverse slot 19 cut in the cover 3.l A link 20 1s attached to the'arm and is extended to a suitable -lever by `-means of which 1t' Amay be. drawn to bring the arm'to any point mtermediate the position shown in the full and dotted lines in Figure 3.' A

Whetherit is desired to stop or slow down the rotation of the shaft, the link 20 is shifted in the manner described. The cor-V rugated sections 15 and 17 engage one another, and the movement of the portlon 17 around the part 15 moves the plate 12 against the adjacent disk. The disks 8 and yokes l0 are thereby brought into close en-` gagement, increasing the friction o n the disks which rotate with the shaft, and consequently reducing the speed of the latter.

If the soft metal yokes l0 become worn, the cover 3 is removed and the pin 14.- is raised, carrying all the yokes With it. The yokes are then readily removed from the pin and replaced by new ones.

While a specific embodiment of the invention has been illustrated and described, itis to be understood that various alterations in the details of `construction may be made without departing from the spirit of the invention as indicated by the appended claims. i

Having thus fully described the'invention, what I claim as new and desireI to protect by Letters Patent is l. A multiple disk brake comprising in combination with a shaft having a squared portion, a plurality of disks mounted on said squared portion to rotate therewith, yokes alternating with said disks and free from the shaft, and means for compressing said disks and yokes.

2. A multiple disk brake comprising in combination with a shaft having a squared portion, a plurality of disks mounted on said squared portion to rotate therewith, yokes alternating With said disks and free from the shaft, a plate loosely surrounding said squared portion and having a corrugated face, a collar surrounding the round portion of the shaft and having a corrugated face adapted to engage the rst corrugated face, and means for turning said collar independently of the shaft.

3. A multiple disk brake comprising in combination with a shaft having a squared portion, a plurality of disks mounted onsaid squared portion to rotate therewith, yokes alternating with said disks and free from the shaft, means for compressing said disks and yokes, and a pin passedl through said yokes, said pin lying outside the periphery of the disks.

4;. A multiple disk .brake comprising in combination'with a shaft having a squared portion, a plurality of disks mounted on said squared portion to rotate therewith, yokes alternating With said disks and free fromthe shaft, a plate loosely surrounding said squared portion afnd yhaving a corrugated face, a collar surrounding the round portion of thev shaft 'and having a corrugated face adapted to engage the first corrugated face, means for turning said collar independently of the shaft, and a pin passed through said plate and yokes, said pin lying outside the periphery of the disks.

5. A multiple disk brake comprising in combination with a l'shaft having a squared portion, a plurality of disks mounted on said squared portion to rotate therewith,'yokes alternating with said disks and free from the shaft, a plate loosely surrounding said squared portion and having a corrugated face, a collar surrounding the round portion of t-he shaft and having a corrugated face, a pin lpassed through said plate and yokes, said pin lying outside the periphery of the disks, a housing enclosing said shaft and parts surrounding the shaft, said housing having a removable cover with a slot formed therein, an arm extending from said collar and passing through said slot, and a link attached exteriorly to said arm for turning the collar relatively to the shaft.

In witness whereof I have hereunto set my hand.

ADELARD DESCARRIES 

